Rod and tube elevating and pumping apparatus for oil-wells.



PatentedNov. (ll, I902.

W. J. WRIGHT. BOD AND TUBE ELEVATING AND PUMPING APPARATUS FOR OIL WELLS (Application filed Aug. 13, 1901.)

2 sheets shaot I.

(N0 Model.)

6A5 ENGINE INVENTO/Y X9 wZZ/W'Es 35 22 OHNEYS' Patented Nov. II, 1902. w. J. WRIGHT.

ROD AND TUBE ELEVATING AND PUMPING APPARATUS FOR DIL WELLS.

(Application filed Aug. 13, 1901'.)

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(No Model.)

' //v VENTOR WZZZz'am 4 WITNESSES W UNITED STATES PATENT OFFICE.

WILLIAM J. WRIGHT, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF THREE- SIXTEENTHS TO J. WV. LEE AND FRED J. GALLOWAY, OF PITTSBURG,

PENNSYLVANIA.

ROD AND TUBE ELEVATING AND PUMPING APPARATUS FOR OIL-WELLS.

SPECIFICATION forming part of Letters Patent No. 713,269, dated November 11, 1902.

Application filed August 13,1901. Serial No. 71,960. (No model.)

To all whom it may concern: gas-engine can be readily substituted in place 50 Be it known. that I, WILLIAM JAMES ofagreater-power steam-engine and in which WRIGHT, residing at Pittsburg, in the county the band and bull wheels can be joined by a of Allegheny andState of Pennsylvania, have straightway endless belt or rope.

invented a new and Improved Rod and Tube My invention alsocoinprehends in its com- Elevating and Pumping Apparatus for Oilplete make-up a novel and simple reversing 5 5 Wells, of which the following is a specificarnechanism connected, preferably, to the shaft tion. of the gas-engine for quickly reversing the In preparing and operating oil-wells it is movement of the band and bull wheel shafts 1o usual to provide a steam-engine for impartand for holding them inert and alsofor quickly ing proper reverse motion to the band and shifting the direction of motion to assist the 60 bull Wheels for effecting the lift of the rod brake or governor devices in controlling the and tube sections when it is desired to make descending or ascending movements of the the well ready for the pumpingo'utfit and to rods and tubes during the operation of low- I5 then utilize the engine for operating the walkering or raising said parts in the well.

ing-beam. To effect the proper rotation of My invention in its complete nature also 65 the bull-wheel, the same is joined bya crossed includes certain novel details of construction power-transmitting rope that connects it with and peculiar combination of parts,all of which the band or grooved wheel on the shaft that will hereinafter be fully described, and parcarries the crank for operating the walkingticularly pointed out in the appended claims,

beam. From practical experience with oilreference being had to the accompanying 70 Well apparatus of this character I have found drawings, in which that the crossing of the power-transmitting Figure 1 is a diagrammatical plan view rope by reason ofthe frictional rubbing or illustrating the general arrangement of my 2 5 contact of its several parts soon wears out complete apparatus. Fig. 2 is a side elevathe rope and causes it to break at times when tion illustrating an oil-well derrick, the walk- 7 5 a break in the operation of the several parts ing beam, the band-wheel, shaft and supproves disastrous and one of great expense, ports, the bull-wheel, and the connections be and besides by reason of the frictionalcontween the several parts. Fig. 3 is atop plan tact of the rope members requires more enview of the walking-beam, operating-shaft,

gine-power than is found necessary when the and the grooved or band wheel that connects 8o rope strands are held separated. Again, by with the bull-wheel. Fig. 4 is a vertical secreason of the necessary reverse operation r'etion on the line 4 4 of Fig. 3. Fig. 5 is a dequired of the engine for properly manipulattail view of one of the stub shaftholding ing the rod and tube lifting rope exacting. brackets, hereinafter referred to. Fig. 5 isa care is required of the operator at the govview on the line 5 5 of Fig. 5; and Fig. 6 is a 8- ernor or brake wheel-for controlling the speed top plan view, on an enlarged scale, of the re of the bull-wheel and its rope-gatheringshaft versing mechanism, hereinafter specifically as well as constant attention of the operator described.

who controls the reversing of the engine. Referring now to the accompanying draw- My invention seeks to provide a certain ings, in which like numerals and letters indi- 9o novel and economical arrangement of parts cate like parts in all the figures, 1 designates adapted when combined with the ordinary an oil-well derrick, 2 the samson-post, 3 the bull-wheel and rope-winding shaft and the walking-beam, 4 the bull-wheel, and 4 the band-wheel standards to effect the required bull-wheel shaft, all of which may be of the operation of rod and tube raising and pumpwell-known construction, as they per se form 5 ing in a more expeditious, convenient, and no part of my invention. economical manner than has heretofore been 5 5 designate the posts, upon which the accomplished and in which a small-power usual type of band-wheel shaft is mounted.

On these posts is journaled the shaft 6, which is belted with and driven reversibly from the engine, as will presently be more fully explained. Upon this shaft is mountedagroove or band Wheel 7, which serves as a substitute for the grooved rim usually a part of the ordinary band-wheel, and this wheel is connected by an endless rope with the bull-wheel 4,the rope in my arrangement beingastraightway one and not crossed. Upon one end of the shaft 6 is mounted a large gear 8, preferably of the same diameter as the wheel 7. (See Fig. 3.) The gear 8 meshes with a cogpinion 9 on a stub-shaft 10, one end of which has a bearing in member 11 of the bracket 11 on the adjacent post 5, and the other end is journaled in the outer end of the anglebracket 11, the special form of which is shown in detail in Fig. 5.

By providing a bracket of the character described the stub-shaft 10 can be conveniently supported on the usual post 5 without requiring any material change thereof. Upon the shaft 10 is mounted a ditferential pulley 12, and the two different-diam eter band-surfaces are held in alinement with a corresponding differential pulley 13 on the gas-engine driveshaft 14.

The large gear-wheel 8 has one of its arms 8 provided with a series of apertures 8 for adjustably joining with it the lower end of the pitman 15, the upper end of which is pivotally connected to the outer end of the walking-beam in the usual manner. The lower end is attached to the arm 8" by the usual pin device 8, as shown.

G designates a gasengine of any approved type. In my complete construction of well preparing and pumping apparatus the bandpulley 13 is loosely fitted upon the drive-shaft 14, and it has a clutch-flange 13.

14 is a hub-piece fixedly held on the shaft 14, with which a set (four, more or less) of clutch-arms 16 16 are pivotally joined, and said arms have a toggle connection 16 with a clutch-sleeve 17, slidably held on the shaft 14, by proper shifting of which the arms 16 are made to engage with the flange 13 to lock the pulley or wheel 13 to turn with the shaft 14 or disengage said flange 13 to permit the pulley 13 turningloosely on said shaft.

18 designates an internal gear-rim fixedly connected to the pulley 13, with which is held to mesh a gear-pinion 10 on a short countershaft 20, mounted in suitable bearings and which carries a small cog-gear 21, loosely mounted thereon, which meshes with a larger cog-wheel 23, fixedly mounted on the outer end of the engine-shaft 14. The wheel 21 has a clutch-face 22, adapted to be engaged by a clutch-sleeve 24, slidably held in the shaft 20 and held under control by a clutch-lever 25, which lever has two arms 25 25 one of which connects with the clutch on the main shaft 14 and the other with clutch 24 and is pivotally mounted in such manner so that when shifted to the limit of movementin one direction it will set the clutches 16 to engage and lock the pulley 13 to turn with shaft 14 and disengage the gear 21 to allow the gear 21 to run loose, and when shifted to the other direction it will reverse the position of the clutches and provide for imparting a reverse motion to the pulley 13 through the shaft 20, gear 19 21, and the internal gear 18 on the pulley 13. Vhen shifted to a central position, the lever 25 sets both clutches to an intermediate or an inoperative position, and thus cuts out the shaft 6and the pumping or tube-lifting devices to leave them at rest while the engine still runs, thereby avoiding the loss of time and the inconvenience of having to start the engine every time the pumping mechanism has been stopped.

From the foregoing, taken in connection with the accompanying drawings,it is thought the complete operation of my invention and its advantages will be readily apparent. By reason of the straightway connection between the bull-wheel and the wheel 7 wear on the drive-rope and danger of breakage are reduced to the minimum, and by reason of the reduction of friction at this part of the apparatus less power is required for operation.

By joining the shaft to the engine in the manner shown and described the band X can be shifted to impart. a high or low speed to shaft 6, and by reason of the simple and convenient manner in which a reverse motion can be imparted to the shaft 6 during the unidirectional motion of the engine-shaft the operation of reversing the movement of the tube and rod lift-rope can be effected quickly and with greater positiveness than is possible with the old method before referred to. Again, by reason of the reversibility of the shaft 6 or cutting it out entirely the reverse action of the shaft 6 can also be readily utilized to assistin retarding the movement of the lift-rope in either direction. One of the essential advantages of my invention lies in the novel manner in which the several parts constituting my invention are arranged, so that they may be readily attached to the ordinary pumprigging and to an ordinary gas-engine without materially changing their present construction.

Having thus described my invention, What I claim, and desire to secure by Letters Patent, is

1. In a mechanism for oil-wells of the character described, the combination with the band-wheel-driving devices, consisting of the pulley 12, the shaft 10, the bracket 11, the

gear 0, on shaft 10, the gear 8 meshing there-.

with, and carried by the shaft 6, and the bandwheel 7, also carried by shaft 6; of the engine-shaft 14, the pulley 13, loosely mounted thereon, belted with the pulley 12, gear connections, connecting the pulley 13 with shaft 14, and clutch mechanism for shifting the said gear connections into an operative position to rotate the pulley 13 on the shaft 14, and for locking the said pulley 13 to rotate with the shaft.

2. In an apparatus as described, the combination with the engine-shaft l4, and the drivepulley 13, loosely mounted thereon; of a supplemental drive-gearing engaging the pulley 13 and shaft 14, said supplemental gearing consisting of the pulley 12and the pinion 9, both carried by the shaft 10, and the shaft 6 carrying the drive-wheel 7, and the gear 8 scribed, the combination with the drive-shaft 14, having a fixedly-held gear 23, and the pulley 13, loosely mounted on said shaft 14, said pulley having a clutch-flange 13*, and an internal gear 18; of the supplemental shaft 20, having a gear 19, held to engage the pulleygear 18, the clutch -faced gear 21, loosely mounted on shaft 20, and held to mesh with drive-gear 23, the clutch 24 on shaft 20, the clutch devices on shaft 14, for cooperating with the clutch-flange 13, on pulley 13, and an operating-lever for shifting the clutch devices on the shafts 14 and 20 in unison but in reverse directions, for the purposes described.

WM. J. WRIGHT.

Witnesses:

FRED G. DIETERICH, LOUIS DIETERIOH. 

